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16 specimens listed
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Diopside, Biotite
stock #13.1-364
Birds Creek (McFall Lake), Herschel Township, Hastings Highlands Municip
Ontario, Canada
5.1 x 4.3 x 3.2 CM (small cabinet/ large miniature)
price: $350
Spring 23

Well-defined, lustrous Diopside crystal up to about 2 CM in a cluster with almost no matrix, just minor Biotite. An older specimen 1960 vintage from the Ruth and Andy Palmer and, also, the William Hladysz collections. The crystals look dark green in normal lighting but with backlight they are translucent and show a bright yellow-green hue. Attractive and in fine condition, it looks similar to classic Dekalb New York specimens, but is from the Bancroft area. This is one of the best we have seen from the area.

Diopside with minor Calcite
stock #22.1-450
Miller Property, Sebastopol, Renfrew County
Ontario, Canada
5.4 x 2.9 x 2.7 CM (cabinet)
price: $320
Fall 22

A super well-formed Diopside ex. John Rodger Mitchell collection. From the prolific and incredible Skarn deposits of the Renfrew area in Ontario, this is an exceptionally choice specimen with a deep oil-green color and wet luster. A smaller side crystal is also well terminated but is contacted and incomplete on the bottom end. Overall this is in very good condition as seen, far better than any other examples we have come across. A pretty Pyroxene example that is on textbook form and not a typical Grenville grundge type piece, this is display worthy!

Diopside
stock #15.1-674
Orford Nickel Mine, St-Denis-de-Brompton, Estrie
Quebec, Canada
4.3 x 1.3 x .9 CM (miniature)
price: $190
new year 2021

A terminated glassy crystal of Diopside with nice green color on the top. Transparent to translucent, this was in the Warren Johannson collection, a very nice example of a "Nickel" Diopside. There were some large and well-known pale brown crystals found at one time in this locality but very few such complete green crystals. A Canadian classic.

Diopside (Chrome rich crystals)
stock #15.1-672
Orford Nickel Mine, St-Denis-de-Brompton, Estrie
Quebec, Canada
4.5 1.9 x 1.3 CM (miniature)
price: $280
new year 2021

A cluster of yellow-green Diopside crystals with a brilliant luster and sharp form. From the well-known Orford Nickel Mine, this specimen was in the Warren Johansson collection it is a 1960's vintage piece. This is very well defined for this locality where most of the green or "Chrome" crystals are frozen in matrix or are much smaller and incomplete. The locality was also known for some large Diopside crystals with a tabular habit and a brown color. This habit is completely different, transparent to translucent and not often seen.In good condition, one termination is contacted but the others are sharp and well-defined.

Diopside -single crystal
stock #AX-16-548
Orford Nickel Mine, St-Denis-de-Brompton, Estrie
Quebec, Canada
5 x 1.6 x .8 CM (miniature)
price: $230


Exceptional, perfect, partly gemmy and with glassy luster this is a great Orford Diopside. There were larger crystals found years ago but few were so well defined. This has the desirable honey yellow color and looks better in person. A modern classic with top quality, perfectly undamaged and looks fine from every angle.

Diopside -Classic gem crystal with Tremolite
stock #19.1-356
DeKalb, St Lawrence Co.
New York, United States
3.6 x 1.5 x 1.2 CM (small miniature/ large thumbnail (toenail))
price: $575


A fine old DeKalb, New York Diopside crystal with exceptional transparency and color. This has a "crown" of altered Tremolite that adds a nice accent. These encrustations were usually removed by mechanical means but this is still intact and I think gives an nice touch to the crystal. Some typical contacting on the rear and one side, overall the condition is excellent with far better than usual luster.

Diopside- Chromian green with Grossular
stock #18.1-741
Orford Nickel Mine, St-Denis-de-Brompton, Estrie
Quebec, Canada
5.9 x 4.4 x 4.2 CM (cabinet)
price: $375
Spring 2019

The so called Chromian Diopsides from the famed Orford Nickel mine are quite prized. We are told that the color may be due to Nickel and not Chrome but either way these are very attractive and uncommon. This one has unusually fine apple green hue. The largest crystal is 1.7 CM and all are gemmy with very glassy luster. Normally the larger crystals are opaque, and a yellowish to grey color. Such bright green clear crystals are usually only microscopic. Tiny deep green Grossular are also present as are Calcite crystals. The tiny crystals add a lot of sparkle in person.

Diopside with Grossular
stock #18.1-389
Jeffrey Mine, Asbestos (now Val-des-Sources, Estrie,
Quebec, Canada
2.6 x 2.2 x 1.8 CM (thumbnail)
price: $70
Late Summer 2018

Mostly a Diopside thumbnail but with some bright orange Grossular tucked between the crystals. A waxy yellow-green color that is not very common at the Jeffrey mine. The central area of the piece is undamaged and well formed, only the outer edge has some chipping. A very affordable but well crystalized piece.